Plastic door



FIG. 1 is a perspective view of a plastic door in accordance with my design;

FIG. 2 is a left side elevation view of the plastic door shown in FIG. 1;

FIG. 3 is a right side elevation view of the plastic door shown in FIG. 1;

FIG. 4 is a plan view of the plastic door shown in FIG. 1, the top and bottom views being the same in appearance and both represented by this plan view; and,

FIG. 5 is a front elevation view of the plastic door shown in FIG. 1. 

The ornamental design for a plastic door, as shown and described. 